diff options
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
| -rwxr-xr-x | tools/perf/scripts/python/flamegraph.py | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/perf/scripts/python/flamegraph.py b/tools/perf/scripts/python/flamegraph.py index cf7ce8229a6c..4f82dfea0a70 100755 --- a/tools/perf/scripts/python/flamegraph.py +++ b/tools/perf/scripts/python/flamegraph.py @@ -123,7 +123,13 @@ class FlameGraphCLI: return "" try: - output = subprocess.check_output(["perf", "report", "--header-only"]) + # if the file name other than perf.data is given, + # we read the header of that file + if self.args.input: + output = subprocess.check_output(["perf", "report", "--header-only", "-i", self.args.input]) + else: + output = subprocess.check_output(["perf", "report", "--header-only"]) + return output.decode("utf-8") except Exception as err: # pylint: disable=broad-except print("Error reading report header: {}".format(err), file=sys.stderr) |